Lubricator.



G. B. ESSEX.- LUBRIGATOR. APPLICATION FILED 00T. 1 9, 1908.

930,462.Y ,Patented Aug. l1o, 1909.

GEORGE B. ESSEX, OF DETROIT, MICHIGANY LUBRICATOR Specification of Letters Patent.

Patented Aug. 10, 1909.

Application mea october 19,'19os. serial No. 458,375.-

To all whom it .meg/'concern' Be it known that I, GEORGE B. Essex, a citizen of the United States of America, residing at Detroit, inthe county of Wayne and State of Michigan, have invented certain new and useful Improvements in Lubricators, of which the following is a specification, reference being had therein to the aecon'i anyin-g drawinvs.

Tiis invention relates to new and uselul improvements in lubricators and has for its drawings, 'in which Figure l is a side elevation of a 'lubrieator' embodying'l'eatures of the. invention; Fig. 2 is -a vertical central section looking at right angles thereto; Fig. 3 a horizontal section on the line :ir-ir Fig. i. l

As shown in the drawings, i indicates the evlindrieal body and 2 and 3 the heads to close the ends thereof to forni the oil reservoir, suitable packing rings 4 being interosed between the glass hody and heads. be upper head 3 is provided with an internelly screwthreaded downwardly extending port-ion 5 and the lower head 2 is provided with an internally threa'dt-id opening adapted to receive the screw-tlireaded boss (i on the upper end of the sight. tilting 7, said littin'g having an upwndly' extending threaded nipple R adapted to engagev the internal threads of the downwardly extending iortion 5 to seurel)v clamp the parts togetliei', u suitable packing ring E) and the parking It) being interposed.

-ll indicates a needle valve axially disposed in the central bore ofthe nipple 8 and portion 5 and cooperating with a valve seat at the Alower end thereof controlling the -iiow ol' oil l'roin the reservoir tlirough the port l2 in the Sight fitting to the passage iii', forming a reduced continuation of the centi-nl hoi-li. A

14 indient-es a coil spring sleeved on 4the stpin ol' the needle valve and interposed be tween a shoulder on the stein formed by the washer 15 and a shoulder formed by an upward extension or boss 16 on the ea 3, said spring being adapted to normally iold the valve stein to its seat. f

17 is a lever handle pivotalbv attached to the upper end ol the valve stein and adapted in its raised position to hold the valve stein away froin its seat against the aetion ot' the spring.` The sight fitting 7 is integrally formed with downwardl)v extending drop nipples lo laterally extending threaded nipples l!) und a threaded boss 2() provided with a locking mit 2l by means of whieh the lubrieiitor is adapted to be supported lo ii the eiugfiue, as l'or example, the bracket 22.

23 and 24 are parallel'transverse passages lorii'ied in the sight `litti'ng above the dro nipples, the passage 23 communicating wit i the `passage i3 through the passage 25 at an :ingle thereto, the outer end 'ot' the passage heilig plugged by means of a screw 26 which may be, removed for purposes of cleaning in ease the/passages should become clogged.

"27 are passages extending at right angles to the passage 23 and eoiinecting the same with the vertical passages 28 in the drop nipples. i

V2) indicate needle valves for controlling the passages 27 to regulate the. drop and 3() are suitable packing nuts engaging they serew-threaded ends ot' the nipples 19.

'lhe passage 24 communicates with the oil reservoir-through a vertical passage 3l eorineeted to the lower end of'the Vent tube 252 to equalize the pressure in the reservoir.

33, Aindicati-s Vertit-al passages in the sight fitting forming a continuation of the passage 24 and extending to the sight feed chambers.

i4 indieates the i-oi'nplen'ientary portion of suitably apertured lugs i-on the complen'ieiitar \r portions ot' the sight itting to securely clam p the parts together.

38 indicates ilo.\\fii\\'a i'illy extending internally threaded nipples l'orined with a central aperture and vValve.` seat adjacent thereto, adapted to be controlled by the eher-k valve 3l), and 4() are suitable iittings for ronneeting tlie oil diseliarge ytubes to thel lubrieator.,

Alt will thus be seen that by this arrange-- nient` two or more l'eeds niaiy he roinbined lll) with the one body, since there are hardly two makes of engines re uiringthe same number `offends especia y in the lower priced englineswhere simplicity, compactness and c eapness ,is .a great desidera-tum.

What vI claim as my invention is 1. 'In a lubricator, a multiple sight feed fitting provided with drop nipples having discharge ducts therethrough, a reservoir havin a single outlet in communication with t e drop nipple ducts, a valve controlling the outlet, a regulatin valve for each npple, vent passages in t e iitting, each a jacent a nipple, and a vent tube in the reservoir in communication with lthe vent passages.

- 2. a lubricator, a'multiple sight feed i tting' provided with drop nipples having nippleuvent passages, a vent tubein the, reseivoir in communication with the vent discharge ducts therethrough, a reservoir havin a single outlet in communication witht e drop nipple ducts, a valve controlling the outlet, a regulating valve for each passages, dischargle nipples on the iitting correspondin to t e drop nipples, and backpressure chec valves in the discharge nipples.

3. Ina lubricator, a multiple sight feed fittin consisting of an upper part provided Wit drop nipples having discharge ducts therethrough, and with an intake passage communicating with the ducts, a compleinentary part having discharge nipples corresponding to the drop nipples, a regulating valve in the upper part for each drop nipple, a back pressure check lvalve in-each discharge nipple, and sight glasses clamped between the fitting parts each housing a drop nipple, a lubricant reservoir supported by the upper part and provided with an outlet communieating with the fitting intake assage, a valve controlling the .reservoir out et, and a vent tube in the reservoir in communication withl air passages through the upper art of the -iitting into each sight feed cham er.

4. In a lubricator, a multiple sight feed fitting consistuig of an upper part having a longitudinally apertuied boss in its upper side and depending drop-nipples having discharge passage therethrough in communication with the bore of the boss, a complementary part having discharge nipples corresponding to the drop nip les, and sight glasses clampedy between the ttingparts each housing a drop nipple, a reservoir consisting of a lower head `secured in the upper part of the fitting, an

upper head having a depending tubular sleeve in screw-threaded engagement with the fittin boss, and a transparent cylinder clamped etween the heads concentric with the sleeve, a valve closure reciprocable in the sleeve and boss controlling a lateral opening Y in the'boss near the lower reservoir head, a lever on the upper head for operating the closure, a vent tube in the reservoir extending fitting parts each housing a drop nipple,

screw-bolts clamping tl ie parts on the glasses, and a supporting lug extending from the upper part, a reservoir consisting of a lower iead secured in the upper art of the fitting, an upper head having a epending tubular sleeve in screw-threaded engagement with the fittin boss, and a transparent cylinder clam ed etween the heads concentric with the s eeve, a valve closure reciprocable in the sleeve and boss controlling a lateral opening in the boss near the lower reservoir head, a lever on the up er head for operating the closure, a vent tu e in the reservoir extending through the lower head in'cornmunication with the dro nipple chambers, a regulating valve for eac drop nipple and back pressure check valves in the discharge ni ples.

6. ln a lubricator, a multiple sight feed itting consisting of an upper part having a longitudinally apertured boss on its u er side and depending drop nipples having ischarge passage therethrough in communication with the bore of the boss, a complementary part having discharge niples corresponding to the dropnipples, an sight glasses clamped between the tting parts each housing a drop nipple, a reservoir consisgting of a lower head secured in the upper part of the fitting, an upper head having -a depending tubular sleeve in screw-threaded engagement with the fitting boss, and a transparent cylinder clamped between the heads concentric with the sleeve, an apertured valve-seat in the' bore of the boss at'the bottom of the reservoir, a valve closure extending through the boss and sleeve controlling an opening.

GEORGE B. ESSEX.

`i\"itnesses:

,ANNA M. Donn, (l'rro E. Ban'rnni.. 

